Very interesting.
My conclusions are:
1. For ordinary gluing applications, all of the PVA glues performed well, with the 'craft glues' slightly less robust that those marketed as wood glues.
2. Ordinary wood glues don't have much water resistance, but the glues marketed as water resistant were pretty good.
3. FlexBond doesn't measure up as well as the PVA glues, but that's not a surprise - its a specialty product and not something that wood workers would choose for day-to-day application.
4. All of the joints involved end-grain. Conventional wisdom is that end-grain joints aren't a strong as face grain joints. I would like to see this series of tests repeated with face-grain joints.